Adjusting patterns foe boots



FRANCIS E. AUGUSTIN, 0F DUBUQUE, IOWA.

ADJUSTING PATTERNS FOR BOOTS, &C.

Specification of Letters Patent No. 43,631, dated July 26, 1864. l

To all whom it may concern:

Be it known that I, FRANCIS E. AUGUSTIN, of Dubuque, county of Dubuque, and State of Iowa, have invented an Improved Mode of Adjusting Patterns for Boots, Shoes, &c.; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification, in which- Figure l, is a plan view of the back pattern for shoes having my invention applied to it. Fig. 2, is a side view showing the pinion, stal, and jam nut which are used in adjusting the pattern. Fig. 3, is a diametrical section through Fig. 2. Fig. 4 represents my principle of adjustment applied to the front pattern for shoes.

Similar letters of reference indicate corresponding parts in the several gures This invention is an improvement in patterns which are made up of a number of sections of stift' boards, or metal plates, put together in such manner that by a single movement all the sections can be adjusted simultaneously either to enlarge the size of the pattern or to diminish its relative proportions, thereby making one instrument serve the purpose of a pattern for various sizes. My invention and improvement in this class of patterns, consists in adapting a toothed pinion to operate the several sections of the pattern, and in combining with said pinion and sections a jam nut for securing the latter rigidly in place after adj ustment, as will 'be hereinafter described.

` To enable others skilled in the art to make and use my invention I will describe its construction and operation.

In the accompanying drawings I have represented two forms of patterns, one for the back part of shoes and the other for the front part, or vamp, of shoes. Both of these patterns have my improved mode of adjustment applied to them and are operated upon the same principle, although they differ in form and number of sections. f

The mode of constructing my patterns is similar to that hitherto adopted, that is to say the several sections which are adjustable Vare connected to a plate, the form of which is such as will bel represented by the outer edges of the sections when these sections are expanded. The usual sections a a, a have oblong slots b, o, formed in them, and these yslots are cut in the direction in which their respective sections are intendedV to be moved; through said slots pass pins o, c, having washers c', o', on their ends and these pins serve as a means of attaching the outer parts of the sections to their foundation plate A, as clearly shown in Figs. l and 4:. The ends of all the sections os, a, are brought together at a suitable point near the middle of the foundation plate A and these ends lie one over the other and have oblong slots formed in them of a suitable length and width; on one edge of each one of these slots teeth CZ are cut which engage with corresponding teeth on a pinion spur wheel g, which is the common driver for the several sections, it being made wide enough to receive the teeth of each plate or section, will operate upon all simultaneously either to thrust them outward or to draw them together.

The pinion g is keyed to a staff h which carries on its upper end a thumb button k', and which passes through plate A and has a head formed on it to keep it in place but allow it to be rotated either to the right or to the left. A loose washer z' and a jam nut n are interposed between the pinion g, and head t, and by means of the nut a, which works on the screw portion of staff h, the several sections a can be secured rigidly in any desired position.

In constructing the various patterns, the foundation plate will be the smallest size -and the several sections should be so arranged and formed that their outer edges will, when the sections are contracted to their fullest extent, come within the outer edges of said plate and the contour of said sections should be such that it will always represent the desired figure though upon different scales.

To operate the pattern it is only necessary to turn the pinion wheel, g, in one direction for expanding the sections, and in the opposite direction for contracting or drawing together the sections. The amount of adjustment can be readily determined by marking off a scale of sizes on one of the sections a and having the end of another section to point at said scale. I propose to construct the patterns of thin sheet metal although I do not confine myself to metal, as various other materials may be used.

It will be seen by reference to Figs. l and 4 that all the sections which go to make up the two patterns, are not directly operated by the racks and pinion still those sections which are not directly connectedto the pin# racks and pinion appliedV and operating subion are indirectly operated byit.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is 1. A sectional pattern for boots'7 Shoes',

etc. so constructed and put together that allV the sections can be adjusted simultaneously by lneanssubstantially as herein described.

2. Adjusting the sections of an expanding and Contracting pattern by means of the stantially as described.

,3. The racks, d, Apinion g pinion sta" z and jam nut n, al1 c ombined With the ad- 15 just-able sections and operating substantially as described.

FRANCIS 13. AUGUSTIN.

Vitnesses FREDERICK MILLER,

CHRISTIANV WULLWEBER. 

